油漆涂刷的一般知识与误区

环氧漆能涂在醇酸漆上面吗？

Epoxy paint alkyd paint can be coated on?

醇酸漆作为传统的油漆主流品种，各种调和漆、磁漆、防锈漆等应用非常广泛，但时代在进步，科技在发展，醇酸漆作为主流的地位已经被环氧、聚氨酯、氟碳等一系列新型涂料挑战的支离破碎，特别是在工业涂装领域。

As the traditional paint alkyd paint mainstream varieties, all kinds of paint, enamel, paint and other widely used, but in the era of progress, the development of science and technology, alkyd paint as a mainstream position of epoxy, polyurethane, be reduced to fragments has been a series of new challenges of fluorocarbon coatings, especially in the field of industrial coating.

这样必然会产生一个问题：旧的醇酸涂层上，能不能用新涂层覆盖呢?

This creates a problem: alkyd coating of the old, can not be covered by the new coat?

想法是美好的，现实是残酷的。如果咨询绝大多数油漆厂家，得到的答复都是不行。

The idea is good, but reality is cruel. If the vast majority of the paint manufacturer consultation, the answer is no..

为什么? 两点：不合适，有风险。

Why?: two wrong, there are risks.

不合适：老旧醇酸漆不能承担底漆的重任。

Inappropriate: old alkyd paint can not bear the responsibility of primer.

油漆涂层与钢铁直接接触的那一道涂层非常重要，提供防锈能力，附着力等等。面漆更多的时候是作为装饰和保护底漆的涂层存在。

The coat of paint coating on iron and steel direct contact is very important, for rust resistance, adhesion and so on. When the paint is more as a decorative and protective coating primer.

环氧、聚氨酯等涂层，覆涂在旧醇酸涂层上，就相当于用醇酸漆作为底漆。特别是老旧的醇酸涂层，是承担不了接下来长达5年以上的底漆重任的。

Such as epoxy polyurethane, coating, coating on the old alkyd coating, which is equivalent with the alkyd paint as primer. Especially in alkyd coating is old, can not bear the responsibility for the next 5 years the primer.

有风险：施工不可控，容易咬底。

Risk: construction is not controllable, easy to bite the end.

对于工业涂装而言，不可控制，意味着不能大规模实现，意味着产品质量参差不齐，意味着产品批次差异.......

In industrial coating, which can not be controlled, means not to achieve large-scale, means that the product quality is uneven, means that the product batch. The difference...

醇酸漆和环氧漆等涂层直接，就存在着这样的问题：

Alkyd paint and epoxy paint coating directly, there are such problems:

新的醇酸涂层表层，是不可涂覆环氧涂层的。

Alkyd coating surface is not new, can be coated with epoxy coating.

但随着醇酸漆氧化反应的发生，彻底干燥好，是可以适应环氧漆的。

But with the alkyd paint oxidation reaction, dry thoroughly, can adapt to epoxy paint.

但这种界限很难掌握。时间过长，这醇酸漆老化过度，失去覆涂价值;时间过短，则醇酸漆和环氧漆直接会咬底。通常醇酸漆和环氧漆的覆涂间隔，在6个月作为为佳。

But this distinction is difficult to grasp. Time is too long, the alkyd paint over aging, loss of coating value; the time is too short, then the alkyd paint and epoxy paint directly will bite the end. Usually the alkyd paint and epoxy paint over coating interval, in 6 months as the preferred.

看到这里，相信已经没有什么人愿意在醇酸漆上面覆涂环氧漆了，太麻烦了，风险大，收益小，划不来啊。

See here, I believe that no what people are willing to alkyd paint coated with epoxy paint, too much trouble, the risk is big, small gains, not worth ah.